LiveActive security incident?Get immediate response
CVE Record

CVE-2021-30281: Possible unauthorized access to secure space due to improper check of data allowed while flashing the no ac...

Possible unauthorized access to secure space due to improper check of data allowed while flashing the no access control device configuration in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

HighCVSS 8.4Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This Qualcomm vulnerability could let someone with local attack capability reach protected device areas during a flashing process. The business risk is highest for products using affected Snapdragon components, especially embedded, IoT, automotive, networking, wearable, and compute devices that depend on secure-space isolation.

Executive priority

Treat as a high-priority firmware supply-chain issue where affected Qualcomm-based products are deployed. It is not shown as actively exploited in the provided sources, but the potential secure-space impact justifies prompt inventory and vendor patch verification.

Technical view

CVE-2021-30281 is an improper check around data allowed while flashing a no-access-control device configuration. Qualcomm rates it CVSS 8.4, local attack vector, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.

Likely exposure

Exposure depends on whether assets contain affected Qualcomm Snapdragon components or listed chipsets and whether their firmware includes the vendor correction. The source bundle lists broad Snapdragon product families and many part numbers, but the affected version list is truncated.

Exploitation context

The provided sources do not state active exploitation, and the CVE is not marked KEV. The CVSS vector indicates local exploitation, not remote network exploitation, with potentially severe secure-space impact if abused.

Researcher notes

Evidence is limited to CVE metadata and Qualcomm's referenced bulletin. The source describes the weakness and impacted product families but does not provide CWE mapping, exploit details, or complete product-version context in the bundle.

Mitigation direction

  • Inventory products using affected Qualcomm Snapdragon components or listed part numbers.
  • Review Qualcomm's April 2022 bulletin and relevant OEM firmware advisories.
  • Apply firmware or platform updates supplied by the device or module vendor.
  • Prioritize systems where local flashing paths are exposed or operationally accessible.
  • Track vendor-specific patch status where Qualcomm fixes are integrated by OEMs.

Validation and detection

  • Map hardware bills of materials to the affected Qualcomm product families and part numbers.
  • Confirm current firmware versions against Qualcomm and OEM security bulletin guidance.
  • Check asset management for automotive, IoT, networking, wearable, compute, and voice devices using Snapdragon components.
  • Verify maintenance records show vendor security updates applied after the April 2022 bulletin.
  • Document any unsupported devices needing compensating controls or replacement planning.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2021-30281 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.4CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.4High
CVSS 3.1 vector shape for CVE-2021-30281Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Qualcomm, Inc.Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and NetworkingAQT1000, AR8031, AR8035, CSR8811, CSRA6620, CSRA6640, CSRB31024, FSM10055, FSM10056, IPQ6000, IPQ6005, IPQ6010, IPQ6018, IPQ6028, MDM9150, MDM9205, QCA4004, QCA4024, QCA6174A, QCA6390, QCA6391, QCA6420, QCA6426, QCA6430, QCA6436, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCA8072, QCA8075, QCA8081, QCA8337, QCA9377, QCA9984, QCM2290, QCM4290, QCM6125, QCM6490, QCN5021, QCN5022, QCN5052, QCN5121, QCN5122, QCN5152, QCN6023, QCN6024, QCN9000, QCN9011, QCN9012, QCN9022, QCN9024, QCN9070, QCN9072, QCN9074, QCS2290, QCS405, QCS410, QCS4290, QCS603, QCS605, QCS610, QCS6125, QCS6490, QCS8155, QCX315, QRB5165, QRB5165M, QRB5165N, QSM8250, SA4150P, SA4155P, SA415M, SA515M, SA6145P, SA6150P, SA6155, SA6155P, SA8145P, SA8150P, SA8155, SA8155P, SA8195P, SD 675, SD 8cx Gen2, SD460, SD480, SD662, SD665, SD675, SD678, SD680, SD690 5G, SD720G, SD730, SD750G, SD765, SD765G, SD768G, SD778G, SD7c, SD855, SD865 5G, SD870, SD888, SD888 5G, SDX24, SDX55, SDX55M, SDX57M, SDXR1, SD ...[truncated*]Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.